1042441111 has 4 divisors (see below), whose sum is σ = 1044176224. Its totient is φ = 1040706000.

The previous prime is 1042441109. The next prime is 1042441117. The reversal of 1042441111 is 1111442401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1111442401 = 4423 ⋅251287.

It is a cyclic number.

It is not a de Polignac number, because 1042441111 - 2¹ = 1042441109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042441117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866655 + ... + 867856.

It is an arithmetic number, because the mean of its divisors is an integer number (261044056).

Almost surely, 2^1042441111 is an apocalyptic number.

1042441111 is a deficient number, since it is larger than the sum of its proper divisors (1735113).

1042441111 is an equidigital number, since it uses as much as digits as its factorization.

1042441111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735112.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1042441111 is about 32286.8566292849. The cubic root of 1042441111 is about 1013.9514877971.

Adding to 1042441111 its reverse (1111442401), we get a palindrome (2153883512).

The spelling of 1042441111 in words is "one billion, forty-two million, four hundred forty-one thousand, one hundred eleven".